Whenever i look at the TC UI, when there are one or more jobs queued, the red exclamation mark next to the "Waiting for other transfers..." message always catches my eye, making me think there's an error, something went wrong, the copy didn't work. Actually it's working as designed and just queuing up the next job(s).

Instead of a red exclamation mark, perhaps have a blue "i" which is always associated with 'Information'. Then glancing at the UI, we'll see that it's telling us something, but nothing has gone wrong.